It might be an older version of the DNC32 Program. Should be able to bother Ian to get a newer version. I have also seen where on Older Versions of PM2000, you had to have a 0.mp file in the cnc folder. If you want to try this, drop to a dos prompt, change to the cnc directory (cd\cam\cnc), then type edit 0.mp and press enter. Type m02 in the blue screen then using the mouse exit out saving the file.
NOTE: it is the number 0 not the letter O that is to be used.
Thanks